EP 4187635 A1 20230531 - COMPOSITE CATHODE ACTIVE MATERIAL, CATHODE AND LITHIUM SECONDARY BATTERY COMPRISING THE COMPOSITE CATHODE ACTIVE MATERIAL, AND METHOD OF PREPARING CATHODE ACTIVE MATERIAL

Title (en)

COMPOSITE CATHODE ACTIVE MATERIAL, CATHODE AND LITHIUM SECONDARY BATTERY COMPRISING THE COMPOSITE CATHODE ACTIVE MATERIAL, AND METHOD OF PREPARING CATHODE ACTIVE MATERIAL

Title (de)

VERBUNDKATHODENAKTIVMATERIAL, KATHODE UND LITHIUMSEKUNDÄRBATTERIE MIT DEM VERBUNDKATHODENAKTIVMATERIAL UND VERFAHREN ZUR HERSTELLUNG DES KATHODENAKTIVMATERIALS

Title (fr)

MATÉRIAU ACTIF DE CATHODE COMPOSITE, CATHODE ET BATTERIE SECONDAIRE AU LITHIUM COMPRENANT LE MATÉRIAU ACTIF DE CATHODE COMPOSITE, ET PROCÉDÉ DE PRÉPARATION DE MATÉRIAU ACTIF DE CATHODE

Publication

EP 4187635 A1 20230531 (EN)

Application

EP 22209747 A 20221125

Priority

KR 20210166116 A 20211126

Abstract (en)

Provided are a composite cathode active material, a cathode and a lithium battery that include the composite cathode active material, and a method of preparing the composite cathode active material, the composite cathode active material including: a core including a lithium transition metal oxide; and a shell arranged along a surface of the core, wherein the shell includes at least one first metal oxide represented by M<sub>a</sub>O<sub>b</sub> (where 0<a≤3, 0<b<4, and when a is 1, 2, or 3, and b is not an integer); a first carbon-based material; and a second carbon-based material, and the at least one first metal oxide is arranged in a matrix of the first carbon-based material matrix, M is at least one metal selected from a Groups 2 to 13, 15, and 16 of the Periodic Table of Elements, and the second carbon-based material includes fibrous carbon having an aspect ratio of greater than or equal to 10.

IPC 8 full level

H01M 4/04 (2006.01); H01M 4/1393 (2010.01); H01M 4/1395 (2010.01); H01M 4/36 (2006.01); H01M 4/38 (2006.01); H01M 4/48 (2010.01); H01M 4/587 (2010.01); H01M 4/62 (2006.01)

CPC (source: EP KR US)

C01G 53/42 (2013.01 - US); H01M 4/0471 (2013.01 - EP); H01M 4/131 (2013.01 - KR); H01M 4/136 (2013.01 - KR); H01M 4/1393 (2013.01 - EP); H01M 4/1395 (2013.01 - EP); H01M 4/366 (2013.01 - EP KR US); H01M 4/386 (2013.01 - EP); H01M 4/483 (2013.01 - EP); H01M 4/485 (2013.01 - US); H01M 4/505 (2013.01 - KR US); H01M 4/525 (2013.01 - KR US); H01M 4/54 (2013.01 - US); H01M 4/56 (2013.01 - US); H01M 4/5825 (2013.01 - KR); H01M 4/583 (2013.01 - US); H01M 4/587 (2013.01 - EP); H01M 4/62 (2013.01 - KR); H01M 4/621 (2013.01 - EP); H01M 4/623 (2013.01 - EP); H01M 4/625 (2013.01 - EP KR); H01M 10/052 (2013.01 - KR US); C01P 2002/50 (2013.01 - US); C01P 2002/82 (2013.01 - US); C01P 2002/85 (2013.01 - US); C01P 2004/03 (2013.01 - US); C01P 2004/61 (2013.01 - US); C01P 2004/62 (2013.01 - US); C01P 2004/64 (2013.01 - US); C01P 2004/84 (2013.01 - US); C01P 2006/40 (2013.01 - US); H01M 2004/021 (2013.01 - US); H01M 2004/028 (2013.01 - KR US); H01M 2220/20 (2013.01 - US); Y02E 60/10 (2013.01 - EP)

Citation (search report)

[I] US 2015037680 A1 20150205 - PARK JUN-HO [KR], et al
[I] US 2015349333 A1 20151203 - PARK JUNHO [KR], et al
[T] HOU P X ET AL: "Purification of carbon nanotubes", CARBON, ELSEVIER OXFORD, GB, vol. 46, no. 15, 1 December 2008 (2008-12-01), pages 2003 - 2025, XP025589762, ISSN: 0008-6223, [retrieved on 20080909], DOI: 10.1016/J.CARBON.2008.09.009
[T] ANONYMOUS: "Transition metal - Wikipedia", 1 January 2000 (2000-01-01), XP093032392, Retrieved from the Internet <URL:https://en.wikipedia.org/wiki/Transition_metal> [retrieved on 20230316]
[T] SEAH M. P. ET AL: "Critical review of the current status of thickness measurements for ultrathin SiO2 on Si Part V: Results of a CCQM pilot study", SURFACE AND INTERFACE ANALYSIS., vol. 36, no. 9, 1 September 2004 (2004-09-01), GB, pages 1269 - 1303, XP093032502, ISSN: 0142-2421, DOI: 10.1002/sia.1909

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

EP 4187635 A1 20230531; CN 116190589 A 20230530; JP 2023079218 A 20230607; KR 20230078384 A 20230602; US 2023170470 A1 20230601

DOCDB simple family (application)

EP 22209747 A 20221125; CN 202211503214 A 20221128; JP 2022189323 A 20221128; KR 20210166116 A 20211126; US 202217993714 A 20221123